Research on Structural Response Characteristics of Trapezoidal Floating Body in Waves

• Published in: Journal of marine science and engineering Vol. 10; no. 11; p. 1756
• Main Authors: Song, Xuemin, Liu, Weiqin, Zhang, Guowei
• Format: Journal Article
• Language: English
• Published: Basel MDPI AG 01.11.2022
• Subjects: Aircraft; Computer applications; Deformation; Design; Dimensions; Finite element analysis; Floating bodies; Floating structures; hydro-elastic response; Load; Marine resources; Mathematical models; model test; Model testing; Numerical analysis; numerical calculation; Numerical methods; Stiffness; stress; Structural design; Structural engineering; Structural response; Topography; trapezoidal floating body; Wave tanks; China
• DOI: 10.3390/jmse10111756
• ISSN: 2077-1312

Floating structures plays an important role in extending and developing ocean resources, and their response evaluation is a hot topic of global important research due to the large dimensions. With characteristics including small depth and large horizontal plane, it is easy to induce the hydro-elastic resonant responses due to total stiffness. In this paper, first, the model design is performed to satisfy hydro-elastic similarity. Then, the model test is carried out in a wave tank to measure the structural response of a trapezoidal floating body in a series of waves. Secondly, the 3D hydro-elastic computational platform HOMER is applied to calculate the stress response of a trapezoidal floating body in numerical waves. The model test results and numerical simulation results are analyzed and compared and the conclusions are drawn, which indicate that a numerical method is effective to predict the structural response characteristics of a trapezoidal floating body. Above all, it is found that the significant response of a floating model is generated in some cases. The methods and conclusions of this study are used to provide reference and guidance for structural design of a trapezoidal floating body.